Iwami Sadatsuna Katana
S0131
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An osuriage mumei Nambokucho katana attributed to Sekishu Sadatsuna. Hawatare 2 shaku 1 sun 5 bu (65.15 cm or 24.65"). Shallow sori, wide mihaba, extended kissaki. The bo hi are likely atobori. The hamon is gunome midare in nie deki there is sunagashi and kinsuji. The jigane is a o-mokume nagare mixed with itame. There is jinie and chikei. There are two small losses of umegane just ahead of the habaki. NBTHK Tokubetsu Hozon and sayagaki by Tanobe Michihiro.
There were three generations of Iwami Sadatsuna, two in Muromachi and one in Nambokucho. This is clearly a production of the Nambokucho jidai, and so is the work of the shodai Sadatsuna who was the son of Iwami Naotsuna of the Masamune Jutetsu. He was active around Shohei (1346-1370). His work is widely illustrated in works like Nihonto Zenshu, Kokon Kaji Meishu Roku, and Kokon Meisatsu Miida. He is rated in Toko Taikan at 5,000,000 yen.
Iwami Sadatsuna
Gunome Midare In Nie Deki Sayagaki by Tanobe Michihiro Gunome Midare In Nie Deki
Classic O-Kissaki Of The Nambokucho Period
Two Lost Umegane
NBTHK Tokubetsu Hozon Kanteisho